A novel proteomics approach to epigenetic profiling of circulating nucleosomes
Abstract Alteration of epigenetic modifications plays an important role in human cancer. Notably, the dysregulation of histone post-translational modifications (PTMs) has been associated with several cancers including colorectal cancer (CRC). However, the signature of histone PTMs on circulating nuc...
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Nature Portfolio
2021
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oai:doaj.org-article:4176f7285da34b73a28d4ea26a798e8e2021-12-02T13:26:25ZA novel proteomics approach to epigenetic profiling of circulating nucleosomes10.1038/s41598-021-86630-32045-2322https://doaj.org/article/4176f7285da34b73a28d4ea26a798e8e2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86630-3https://doaj.org/toc/2045-2322Abstract Alteration of epigenetic modifications plays an important role in human cancer. Notably, the dysregulation of histone post-translational modifications (PTMs) has been associated with several cancers including colorectal cancer (CRC). However, the signature of histone PTMs on circulating nucleosomes is still not well described. We have developed a fast and robust enrichment method to isolate circulating nucleosomes from plasma for further downstream proteomic analysis. This method enabled us to quantify the global alterations of histone PTMs from 9 CRC patients and 9 healthy donors. Among 54 histone proteoforms identified and quantified in plasma samples, 13 histone PTMs were distinctive in CRC. Notably, methylation of histone H3K9 and H3K27, acetylation of histone H3 and citrullination of histone H2A1R3 were upregulated in plasma of CRC patients. A comparative analysis of paired samples identified 3 common histone PTMs in plasma and tumor tissue including the methylation and acetylation state of lysine 27 of histone H3. Moreover, we highlight for the first time that histone H2A1R3 citrulline is a modification upregulated in CRC patients. This new method presented herein allows the detection and quantification of histone variants and histone PTMs from circulating nucleosomes in plasma samples and could be used for biomarker discovery of cancer.Priscilla Van den AckervekenAlison LobbensJean-Valery TuratsinzeVictor Solis-MezarinoMoritz Völker-AlbertAxel ImhofMarielle HerzogNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021) |
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Medicine R Science Q |
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Medicine R Science Q Priscilla Van den Ackerveken Alison Lobbens Jean-Valery Turatsinze Victor Solis-Mezarino Moritz Völker-Albert Axel Imhof Marielle Herzog A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| description |
Abstract Alteration of epigenetic modifications plays an important role in human cancer. Notably, the dysregulation of histone post-translational modifications (PTMs) has been associated with several cancers including colorectal cancer (CRC). However, the signature of histone PTMs on circulating nucleosomes is still not well described. We have developed a fast and robust enrichment method to isolate circulating nucleosomes from plasma for further downstream proteomic analysis. This method enabled us to quantify the global alterations of histone PTMs from 9 CRC patients and 9 healthy donors. Among 54 histone proteoforms identified and quantified in plasma samples, 13 histone PTMs were distinctive in CRC. Notably, methylation of histone H3K9 and H3K27, acetylation of histone H3 and citrullination of histone H2A1R3 were upregulated in plasma of CRC patients. A comparative analysis of paired samples identified 3 common histone PTMs in plasma and tumor tissue including the methylation and acetylation state of lysine 27 of histone H3. Moreover, we highlight for the first time that histone H2A1R3 citrulline is a modification upregulated in CRC patients. This new method presented herein allows the detection and quantification of histone variants and histone PTMs from circulating nucleosomes in plasma samples and could be used for biomarker discovery of cancer. |
| format |
article |
| author |
Priscilla Van den Ackerveken Alison Lobbens Jean-Valery Turatsinze Victor Solis-Mezarino Moritz Völker-Albert Axel Imhof Marielle Herzog |
| author_facet |
Priscilla Van den Ackerveken Alison Lobbens Jean-Valery Turatsinze Victor Solis-Mezarino Moritz Völker-Albert Axel Imhof Marielle Herzog |
| author_sort |
Priscilla Van den Ackerveken |
| title |
A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| title_short |
A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| title_full |
A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| title_fullStr |
A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| title_full_unstemmed |
A novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| title_sort |
novel proteomics approach to epigenetic profiling of circulating nucleosomes |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/4176f7285da34b73a28d4ea26a798e8e |
| work_keys_str_mv |
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1718393025735950336 |